import sys
from optparse import OptionParser, Option, SUPPRESS_HELP
class PAOptionParser(OptionParser, object):
def __init__(self, *args, **kw):
self.posargs = []
super(PAOptionParser, self).__init__(*args, **kw)
def add_posarg(self, *args, **kw):
pa_help = kw.get("help", "")
kw["help"] = SUPPRESS_HELP
o = self.add_option("--%s" % args[0], *args[1:], **kw)
self.posargs.append((args[0], pa_help))
def get_usage(self, *args, **kwargs):
self.usage = "%%prog %s [options]\n\nPositional Arguments:\n %s" % \
(' '.join(["<%s>" % arg[0] for arg in self.posargs]), '\n '.join(["%s: %s" % (arg) for arg in self.posargs]))
return super(self.__class__, self).get_usage(*args, **kwargs)
def parse_args(self, *args, **kwargs):
args = sys.argv[1:]
args0 = []
for p, v in zip(self.posargs, args):
args0.append("--%s" % p[0])
args0.append(v)
args = args0 + args
options, args = super(self.__class__, self).parse_args(args, **kwargs)
if len(args) < len(self.posargs):
msg = 'Missing value(s) for "%s"\n' % ", ".join([arg[0] for arg in self.posargs][len(args):])
self.error(msg)
return options, args
if __name__ == '__main__':
#parser = PAOptionParser("My usage str")
parser = PAOptionParser()
parser.add_posarg("Foo", help="Foo usage")
parser.add_posarg("Bar", dest="bar_dest")
parser.add_posarg("Language", dest='tr_type', type="choice", choices=("Python", "Other"))
parser.add_option('--stocksym', dest='symbol')
values, args = parser.parse_args()
print values, args
# python mycp.py -h
# python mycp.py
# python mycp.py foo
# python mycp.py foo bar
#
# python mycp.py foo bar lava
# Usage: pa.py <Foo> <Bar> <Language> [options]
# Positional Arguments:
# Foo: Foo usage
# Bar:
# Language:
#
# pa.py: error: option --Language: invalid choice: 'lava' (choose from 'Python', 'Other')
Diff to Previous Revision
--- revision 4 2008-07-14 19:01:39
+++ revision 5 2012-02-27 12:32:11
@@ -4,7 +4,7 @@
class PAOptionParser(OptionParser, object):
def __init__(self, *args, **kw):
self.posargs = []
- super(self.__class__, self).__init__(*args, **kw)
+ super(PAOptionParser, self).__init__(*args, **kw)
def add_posarg(self, *args, **kw):
pa_help = kw.get("help", "")
